@ARTICLE{
author={Stevanovic Dragan P,de Abreu Nair MM,de Freitas Maria AA,Vinagre Cybele,Del-Vecchio Renata},
year={2009},
title={On The Oriented Incidence Energy And Decomposable Graphs},
journal={FILOMAT},
volume={23},
number={3},
pages={243-249},
document_type={Article},
} 

@ARTICLE{
author={de Abreu Nair MM,Vinagre Cybele,Bonifacio Andrea Soares,Gutman Ivan},
year={2008},
title={The Laplacian energy of some Laplacian integral graphs},
journal={MATCH-COMMUNICATIONS IN MATHEMATICAL AND IN COMPUTER CHEMISTRY},
volume={60},
number={2},
pages={447-460},
document_type={Article},
} 

@ARTICLE{
author={Gutman Ivan,de Abreu Nair MM,Vinagre Cybele,Bonifacio Andrea Soares,Radenkovic Slavko},
year={2008},
title={Relation between energy and Laplacian energy},
journal={MATCH-COMMUNICATIONS IN MATHEMATICAL AND IN COMPUTER CHEMISTRY},
volume={59},
number={2},
pages={343-354},
document_type={Article},
}